Steady Thermal Convergence Method

You can select one of the following convergence methods for Creo Simulate to use when it runs your steady thermal analysis:

• Multi-Pass Adaptive—This method is available for all model types.

When you run a design study, the Thermal engine performs calculations and increases the polynomial order for each element edge until the convergence criteria is satisfied. An analysis converges when the difference in the results of the current pass and the previous pass is within the percentage you specify for Percent Convergence.

• Single-Pass Adaptive—This method is available for all 3D models.

Creo Simulate runs a first pass at p=3 and determines a local estimate of heat flux error. Using this error estimate, Creo Simulate determines a new p-order distribution and performs a final pass.

If you use the iterative solver, Creo Simulate runs a first pass using the block solver at p=2, followed by a second pass using the iterative solver at p=3. Using the heat flux error estimate from the second pass, Creo Simulate performs a third and final pass.

The polynomial order for beams is 9 for the final pass.

• Quick Check (No Convergence)—This method is available for all models. It does not check convergence.

Creo Simulate performs a single pass analysis with uniform p=3. You can use this method to verify that you have defined your analysis correctly.